Programming C without variables is like, well, programming C without variables. They are so essential to the language that it doesn’t even require an analogy here. We can declare and use them… ...

Structures (or “structs” in C) allow you to group several related variables and treat them as one unit. They are a mechanism for extending the type system of the C language by introducing user-defined ...

Jagged arrays are a special type of arrays that can be used to store rows of data of varying lengths to improve performance when working with multi-dimensional arrays ...